Abstract
In the context of weak AC grids, the significant growth in installed capacity of renewable energy sources has intensified the interactions among inverters and their interaction with the AC grid, severely affecting the safe and stable operation of the grid system. In response to this issue, this paper takes a small-disturbance perspective and, based on the 'black box' testing, conducts impedance measurements on the characteristics of inverters and the grid. Subsequently, employing the Nyquist stability criterion, the paper presents a thorough analysis of the potential ramifications associated with grid-connection in scenarios where the internal parameters of the inverter are unknown and the system operates within a weak grid environment. Finally, the result is validated through simulation experiments.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2024 24th International Scientific Conference on Electric Power Engineering, EPE 2024 |
| Editors | Tadeusz Sikora, Petr Moldrik, Petr Kacor |
| Publisher | IEEE Institute of Electrical and Electronics Engineers |
| Number of pages | 4 |
| ISBN (Electronic) | 9798350348774 |
| DOIs | |
| Publication status | Published - 2024 |
| Event | 24th International Scientific Conference on Electric Power Engineering: EPE 2024 - Kouty nad Desnou, Czech Republic Duration: 15 May 2024 → 17 May 2024 |
Conference
| Conference | 24th International Scientific Conference on Electric Power Engineering |
|---|---|
| Abbreviated title | EPE 2024 |
| Country/Territory | Czech Republic |
| City | Kouty nad Desnou |
| Period | 15/05/24 → 17/05/24 |
Keywords
- black-box testing
- grid-connected inverter
- impedance measurement
- stability analysis
- weak grid
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Renewable Energy, Sustainability and the Environment
- Electrical and Electronic Engineering
- Safety, Risk, Reliability and Quality
- Modelling and Simulation
